TABLE OF CONTENTS. 



FAGK 



INTRODUCTION ........ 7 



MOSQUITOES AND MALARIA ...... 8 



MOSQUITOES AND YELLOW FEVER ..... 18 



MOSQUITOES AND FILARIASIS ...... 20 



FISHES THAT FEED UPON THE LARVAE OF MOSQUITOES . 21 



TSETSE-FLIES AND TRYPANOSOMIASIS .... 22 



TABANID FLIES AND " CALABAR SWELLINGS " . . .26 



HOUSE-FLIES AND INTESTINAL DISEASES .... 27 



SHEEP BOT-FLY 31 



FLEAS AND PLAGUE ....... 32 



BED-BUGS AND DISEASE ...... 37 



LICE AND DISEASE ....... 38 



TICKS AND DISEASE 40 



